Now showing items 34-53 of 68

    • OPERA HIGHLIGHTS 

      Author: Strauss, Thomas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The OPERA experiment is a long baseline neutrino oscillation  experiment aimed at observing the νμ → ντ neutrino oscillation in the CERN neutrino to Gran Sasso beamline in the appearance mode by detecting the τ-decay. Here ...
    • OUR GALACTIC CENTER – THE NEAREST BURNING DISK 

      Author: Kundt, Wolfgang
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This short presentation will update my more than 25 years long attempts at understandingthe actions of the Central Engine at our Galactic Center.
    • POPULATION OF BLACK HOLES IN THE MILKY WAY AND IN THE MAGELLANIC CLOUDS 

      Author: Ziółkowski, Janusz
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In this review, I will briefly discuss the different types of black hole (BH) populations (supermassive, intermediate mass and stellar mass BHs) both in the Galaxy and in the Magellanic Clouds and compare them with each other.
    • PRECISE COSMIC RAYS MEASUREMENTS WITH PAMELA 

      Author: Bruno, A.; Adriani, O.; Barbarino, G. C.; Bazilevskaya, G. A.; Bellotti, R.; Boezio, M.; Bogomolov, E. A.; Bongi, M.; Bonvicini, V.; Borisov, S.; Bottai, S.; Cafagna, F.; Campana, D.; Carbone, R.; Carlson, P.; Casolino, M.; Castellini, G.; Consiglio, L.; De Pascale, M. P.; De Santis, C.; De Simone, N.; Di Felice, V.; Galper, A. M.; Gillard, W.; Grishantseva, L.; Jerse, G.; Karelin, A. V.; Kheymits, M. D.; Koldashov, S. V.; Krutkov, S. Y.; Kvashnin, A. N.; Leonov, A.; Malakhov, V.; Marcelli, L.; Mayorov, A. G.; Menn, W.; Mikhailov, V. V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Nikonov, N.; Osteria, G.; Palma, F.; Papini, P.; Pearce, M.; Picozza, P.; Pizzolotto, C.; Ricci, M.; Ricciarini, S. B.; Rossetto, L.; Sarkar, R.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Y. I.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S. A.; Yurkin, Y. T.; Wu, J.; Zampa, G.; Zampa, N.; Zverev, V. G.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The PAMELA experiment was launched on board the Resurs-DK1 satellite on June 15th 2006. The apparatus was designed to conduct precision studies of charged cosmic radiation over a wide energy range, from tens of MeV up to ...
    • RADIOACTIVE UHECR ASTRONOMY: CORRELATING GAMMA ANISOTROPY AND NEUTRINO PEV EVENTS 

      Author: Fargion, Daniele
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      UHECR (Ultra High Energy Cosmic Rays) were expected to be protons, to fly straight and to suffer of a GZK (opacity on CMB radiation) cut off. AUGER did suggest on 2007 that such early UHECR anisotropy was compatible with ...
    • RECENT DEVELOPMENTS IN ULTRA-HIGH ENERGY NEUTRINO ASTRONOMY 

      Author: Grieder, Peter K. F.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We outline the current situation in ultrahigh energy (UHE) cosmic ray physics, pointing out the remaining problems, in particular the puzzle concerning the origin of the primary radiation and the role of neutrino astronomy ...
    • RESULTS FROM LHCF EXPERIMENT 

      Author: Tricomi, Alessia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The LHCf experiment has taken data in 2009 and 2010 p–p collisions at LHC at √s = 0.9TeV and √s = 7TeV. In this paper the most up-to-date results on the inclusive photon spectra and the π0 spectra measured by LHCf are ...
    • RESULTS FROM THE XENON100 EXPERIMENT 

      Author: Persiani, Rino
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The XENON program consists in operating and developing double-phase time projection chambers using liquid xenon as the target material. It aims to directly detect dark matter in the form of WIMPs via their elastic scattering ...
    • RX-J0852−4622: THE NEAREST HISTORICAL SUPERNOVA REMNANT – AGAIN 

      Author: Aschenbach, Bernd
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      RX-J0852−4622, a supernova remnant, is demonstrated to be closer than 500 pc, based on the measurements of the angular radius, the angular expansion rate and the TeV g-ray flux. This is a new method of limiting the distance ...
    • SEARCH FOR DARK MATTER WITH GAMMA-RAYS: A REVIEW 

      Author: Morselli, Aldo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Successfully launched in June 2008, the Fermi Gamma-ray Space Telescope, formerly named GLAST, has been observing the high-energy gamma-ray sky with unprecedented sensitivity inthe 20MeV ÷ 300 GeV energy range and electrons ...
    • SEARCH FOR GRAVITATIONAL WAVES FROM SUPERNOVAE AND LONG GRBS 

      Author: van Putten, Maurice H.P.M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We report on evidence for black hole spindown in the light curves of the BATSE catalogue of 1491 long GRBs by application of matched filtering. This observation points to a strong interaction of the black hole with surrounding ...
    • STATUS OF THE CUORE EXPERIMENT 

      Author: Tomei, Claudia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te, a rare nuclear process that, if observed, would demonstrate the Majorana nature of the ...
    • STUDY OF THE TIME DEPENDENCE OF RADIOACTIVITY 

      Author: Bellotti, E; Broggini, C.; Di Carlo, G.; Laubenstein, M.; Menegazzo, R.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The activity of a 137Cs source was measured using a germanium detector installed deep underground in the Gran Sasso Laboratory. In total about 5100 energy spectra, one hour measuring time each, were collected and used to ...
    • SUPERNOVA 1987A: CELEBRATING A SILVER JUBILEE 

      Author: Panagia, Nino
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The story of the SN 1987A explosion is briefly reviewed. Although this supernova was somewhat peculiar, the study of SN 1987A has clarified quite a number of important aspects of the nature and the properties of supernovae, ...
    • TeV GAMMA RAYS: OBSERVATIONS VERSUS EXPECTATIONS & THEORY 

      Author: Krennrich, Frank
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The scope of this paper is to discuss two important questions relevant for TeV γ-ray astronomy; the pursuit to reveal the origin of cosmic rays in our galaxy, and the opacity of the universe in γ-rays. The origin of cosmic ...
    • THE 2H(α, γ)6LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS 

      Author: Gustavino, Carlo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The 2H(α, γ)6Li reaction is the leading process for the production of 6Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, ...
    • THE ASTRO-H MISSION 

      Author: Maeda, Yoshitomo; Takahashi, Tadayuki; Mitsuda, Kazuhisa; Kelley, Richard
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      A review of the Astro-H mission is presented here on behalf of the Astro-H collaboration. The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space ...
    • THE AUGER ENGINEERING RADIO ARRAY 

      Author: Weidenhaupt, Klaus
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations. Its unique site, embedded into the ...
    • THE DISCOVERY OF THE CHANDRASEKHAR MASS AND THE CHANDRASEKHAR-EDDINGTON CONTROVERSY 

      Author: Shaviv, Giora
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The so called Chandrasekhar limiting mass is a a quantum mechanical relativistic effect. The discovery and establishment of the concept involved a major controversy between the young Chandrasekhar and the hilarious Eddington. ...
    • THE FIRST CENTURY OF COSMIC RAYS, AN HISTORICAL OVERVIEW 

      Author: Jones, Lawrence W.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The 1912 balloon flights of Victor Hess and related activities in those years are reviewed. Subsequent research during the early 20th Century is noted, including the discovery of the positron, mesons, and air showers. The ...